Electric hand-lamp.



H. SIEGENBRUGH. ELECTRIC HAND LAMP. APPLmATION FILED APR.29,1910.

Patented June 13, 1911.

VGEEEQE,

HERMANN SIEGENBRUCH, OF HEISSEN, GERMANY.

ELECTRIC HAND-LAMP.

' Specification of letters Patent.

Patented June 33, 1% 3,

Application fi1ed'Apri1'29, 1910. Serial No. 558,390.

To all whom it may concern:

Be it known'that I, HERMANN SIEGEN- BRUCH, a subject of the GermanEmperor, and resident of Heissen, Germany, have in vented certain newand useful Improvements in Electric Hand-Lamps, of which the followingis a specification.

To the hitherto known electric hand lamps the drawback occurs that theirworking security suliers owing to careless treatment, mainly because thelamp when used is often turned to and fro by the workmen, whereby thecable for the supply of current gets twisted. If this twisting is notcompensated by re-turning the lamp, but the cable is only pulledstraight, the insulation of the cable soon gets damaged, whereby ashort-circuiting of the wires is effected. The present inventionprovides, therefore, means by which this drawback is-effectivelyavoided.

The accompanying drawing shows the subject matter of the invention.

Figure 1 is a sectional elevation of an electric hand lamp, theglow-lamp being omitted, Fig. 2 is a diagrammatical plan of a detail ofthe same.

The handle a possesses on its upper end a boring which serves for thereception of the lamp socket and which extends downward to form achannel bier the passage of the cable. The lamp socket 0, which rests inthe boring, carries on its lower end a device for fixing the cable,which consists of the two clamping members d, which are oblique my handin the presence on their inner ends, and the clamping ring 6. Around thesocket and integral with the same, a flange f havingseveral gaps isplaced and supported by a step in the handle. To obtain an easy rotationof the socket, the flange is in itsgaps provided with balls 9 which areadapted to run on the step of the handle. On top of the handle a ring72. is provided to hold the socket in place, said ring being fixed onthe handle preferably in a detachable way. By this way, the lamp can beturned without in any way impairing the cable, as the handle is adaptedto rotate freely on the ball hear ing f7 Having fully described myinvention,

what I claim and desire to secure by Letters Patent is:

An electric hand lamp, comprising a handle having a central boring, aglow-lamp socket movably located in the upper end of said boring, a rinto hold said socket in place, means to connect said socket with theelectric power source, and a ball hearing between said socket and handleto allow an easy rotation ofthe latter around said socket, for thepurpo: "et forth.

In testimony where L have hereunto set of two subscribing witnesses.

HERMAN N SEEGENBRYUCH.

Witnesses:

Louis Vannonn, Ronnn'r H. DUNLAP.

